Case Study 16-2 — Five Feet Outside the Building Line

Setup

Project: Rivermont Elementary School #12. $22,400,000, hard-bid design-bid-build lump sum, public owner (Rivermont Unified School District), prevailing wage, 100% payment and performance bonds. A 78,000-square-foot elementary school with a commercial kitchen, a gymnasium, and a two-story classroom wing.

The contractor: Kestrel Construction Group. The project manager: Curtis Boone.

Curtis is not a bad project manager. He is a very good one at some things and structurally wrong about one thing. He wins work by buying it low, runs a lean staff, manages by force of personality, and documents almost nothing. He is likable, he is fast, and his jobs are usually fine right up until they are not.

The relevant packages:

Curtis's buyout schedule: all four packages awarded in eleven days. No scope review calls. Curtis read the exclusion pages, leveled the numbers on a spreadsheet, and awarded. His reasoning, which he stated out loud in the operations meeting, was that scope review calls are for people who cannot read.

(Every company, person, and project in this case study is an illustrative composite.)

What Happens

The three exclusion lines

Here are the operative sentences, one from each proposal, all of which Curtis read and none of which he cross-referenced.

Delacroix Underground (33-1): "Includes sanitary, storm, and domestic water from the point of connection at the street to a point five feet (5'-0") outside the building line. Work inside 5'-0" by others."

Vessel Plumbing & Mechanical (22-1): "Under-slab plumbing as shown on Drawings P-101 through P-104. Site utilities by others."

Redline Fire Protection (21-1): "Sprinkler system complete from the riser flange up. Fire service main, backflow preventer, and fire department connection by others."

Each sentence is professional, honest, and clear. Read individually, each defines a sensible scope. Read together against the drawings, they leave a hole.

Drawing P-101 — the under-slab plumbing plan — shows the sanitary, storm, and domestic water lines terminating at the building line. Not at five feet outside it. At the line.

So the five-foot zone belongs to nobody. And the five-foot zone turns out not to be the expensive part.

Month seven — the plumber's foreman asks a question

The building is out of the ground, the slab is poured, the classroom wing is framed, and Vessel's foreman is roughing in the kitchen. He walks out to the loading area with the site plan and calls his PM, who calls Curtis.

Vessel PM: "Curtis, where's my grease waste?"

Curtis: "What do you mean, where's your grease waste."

Vessel PM: "The interceptor's outside the building. Fifteen hundred gallon, it's on C-3. It's not on P-101. My scope is P-101 through P-104."

Curtis: "Delacroix has site utilities."

Vessel PM: "Delacroix's letter says sanitary, storm, and domestic water. Grease waste isn't any of those three, and it's not sanitary until it's downstream of the interceptor. Call them, but I'm telling you what my guy is going to say."

Curtis called them. Their guy said exactly that.

Over the next nine days, four separate gaps surfaced, because once you pull one thread on a seam the whole seam comes apart.

The gap, itemized

The backcharge fight

Curtis's first move was to issue backcharge notices to Delacroix and Vessel for $90,000 each, on the theory that one of them must have it and he would let them figure out which.

This failed in three weeks, for reasons that are worth stating precisely.

Against Delacroix: their subcontract incorporated their proposal as an exhibit. The proposal named three systems by name. Grease waste, fire service, and area drains are not those three systems. Delacroix's counsel wrote one paragraph and Curtis's own document proved their case.

Against Vessel: their subcontract incorporated their proposal, which named four drawings by number. The work was not on those four drawings. Same paragraph, same result.

Against Redline: Curtis did not even try. "From the riser flange up" is unambiguous.

Against Bracken: demobilized, final payment released, unconditional final lien waiver executed in month three. Gone.

A backcharge requires a contractual obligation the subcontractor failed to perform. You cannot backcharge someone for work they never agreed to do. Curtis had four subcontracts, each of which was internally coherent and correctly performed, and $180,000 of work that fell between them.

There was a second problem, which mattered less here but matters constantly elsewhere: Kestrel's subcontract requires 48 hours' written notice before performing backcharge work. Curtis had already directed Vessel to install the grease line on a time-and-material basis before he issued any notice. Even if a contractual obligation had existed, the procedural precondition had been blown.

Who actually paid

Two of those three lines are goodwill, not entitlement. Vessel and Delacroix did not owe Curtis anything. They negotiated because they were on the job, wanted the next job, and preferred a discount to a fight. That is a real and underrated asset — and it is exactly the asset that bid shopping destroys, which is worth remembering about a project manager who shops numbers.

What $131,000 meant on that job

Rivermont Elementary was hard bid at $22,400,000 with a fee of roughly 3.5% — about $784,000.

$131,000 ÷ $784,000 = 16.7% of the project's entire fee, consumed by four sentences on three exclusion pages that nobody read side by side.

Put a second way: Curtis saved perhaps six hours by skipping the scope review calls on four packages. Six hours against $131,000 is $21,833 per hour not spent in a scope review meeting.

Analysis

The temptation is to read this as a story about a careless project manager. It is not, quite. Curtis read every exclusion page. He is a fast, literate reader. The failure was not attention; it was method.

Curtis leveled the bids vertically — one package at a time, comparing three bidders inside a single trade. That is the estimating discipline from Chapter 13 and it is necessary. But a scope gap is invisible in a vertical comparison, because all three site-utility bidders exclude the fire line, so the exclusion cancels out and never shows as a difference. Vertical leveling makes gaps disappear by making them uniform.

Gaps are only visible in a horizontal read: one seam at a time, across adjacent packages, asking not "which bidder is cheapest" but "does the work between these two subcontracts exist in either of them?"

That is the entire method, and it is what §16.4's scope-gap hunt does. It takes about four hours per adjacent-trade pair. Curtis had four pairs to walk. Sixteen hours. He spent zero and paid $131,000.

The second observation is about timing and leverage, and it is the reason this chapter exists.

In month one, Curtis had four bidders per package, unsigned contracts, and a competitive market. Any of the four gaps could have been added to a proposal for its bid unit price, or the package could have been reissued to all bidders with a corrected scope. Cost: roughly $180,000, paid by whoever was low, inside a bid he had not yet accepted — which means the market, not Kestrel, would have priced it.

In month seven, Curtis had four executed subcontracts, four mobilized subcontractors, no competition, an operating school district expecting a summer turnover, and a kitchen inspection date. His negotiating position was: please.

A scope gap does not get more expensive because the work is harder. It gets more expensive because your leverage evaporates.

The scope sheet language that would have prevented all of it

Four sentences. Any one of them kills one of the four gaps. Together they cost nothing and take about ten minutes to write.

For package 33-1 (site utilities), in the Included section:

"The scope boundary between site utilities and building plumbing is the point five feet (5'-0") outside the building line. This Subcontractor's work includes all piping, fittings, bedding, backfill, and compaction from the point of connection at the street to that boundary, for all buried systems serving the building, including sanitary, storm, domestic water, fire service, and grease waste. Work inside the 5'-0" boundary is Subcontract 22-1."

For package 22-1 (plumbing), in the Included section:

"This Subcontractor's work includes all under-slab and buried plumbing from the fixture to a point five feet (5'-0") outside the building line, regardless of whether such piping is shown on Drawings P-101 through P-104, including foundation-wall sleeves, core drilling, and re-compaction within the building pad. The grease waste system in its entirety, including the grease interceptor, its excavation, and its connection to the sanitary system, is included in this Subcontract."

For package 21-1 (fire protection), in the Included section:

"Fire service main from the 5'-0" boundary to and including the backflow assembly, fire department connection, and riser, is included in this Subcontract. Work outside the 5'-0" boundary is Subcontract 33-1."

For every package, in the Clarifications section:

"Where this Subcontractor's proposal excludes work by reference to 'others,' 'GC,' or a drawing number, such exclusion is superseded by this Scope Exhibit. In the event of conflict between this Scope Exhibit and Subcontractor's proposal, this Scope Exhibit governs."

That last sentence is the quiet workhorse of the set. It resolves the order of precedence inside the subcontract, and it is the difference between a scope sheet that describes your intentions and a scope sheet that controls the contract. Without it, a subcontractor's attached proposal and your attached scope exhibit are two exhibits saying different things, and you are going to spend a lot of money finding out which one wins.

Note also what the language does structurally: it defines the boundary once, as a physical location — five feet outside the building line — and then assigns everything on each side of it, rather than listing systems by name. Curtis's gaps all came from list-based scope ("sanitary, storm, and domestic water") that failed the moment a fifth system existed. Boundary-based scope survives systems you forgot about. List-based scope does not.

Discussion Questions

1. All four subcontracts were internally coherent, and all four subcontractors performed correctly. Explain to a first-year project engineer how $180,000 of work can exist in a complete set of construction documents and in none of the contracts that were bought from those documents.

2. Curtis's vertical leveling was competent estimating practice. Describe, in your own words, why a scope gap is systematically invisible to vertical leveling and systematically visible to a horizontal seam walk. Give an example from a different trade pair than the ones in this case.

3. Vessel and Delacroix contributed $49,000 they did not owe. What did Kestrel actually spend to obtain that $49,000, and would Curtis have gotten it if he had bid-shopped those two packages the previous year? What does that tell you about the cash value of a reputation?

4. Compare the last of the four scope sheet sentences — the order-of-precedence clarification — to what you learned about order of precedence in the contract documents in Chapter 7. What is the same, and what is different, about resolving precedence inside a subcontract versus inside the prime contract documents?

5. The backcharge failed on two independent grounds: no contractual obligation, and no 48-hour written notice. If the first ground had not existed — if, say, Delacroix genuinely had agreed to the fire line — would the notice failure alone have sunk the backcharge? What does that tell you about the relationship between being right and being able to collect?

Your Turn

Your Willow Street Community Center has a commercial kitchen, a gymnasium, and one existing 8-inch water main to relocate. It has the same seam that killed Rivermont Elementary, plus several more.

1. Write the boundary sentence for the Willow Street site-utility-to-building-plumbing seam. Define the boundary as a physical location and assign everything on both sides. Do not list systems by name.
2. Identify the second-most-dangerous seam on Willow Street — the one involving the commercial kitchen equipment package. Name every trade that touches a piece of kitchen equipment, and write down what each one will assume the others are doing.
3. Price your Willow Street version of gap #1 (grease waste and interceptor) two ways: as a scope addition made at buyout, and as a change order in month nine after the kitchen slab is poured and the floor sink locations are set. State the ratio.
4. Write the order-of-precedence clarification sentence for your own scope exhibits, and put it in your Project Notebook where you will find it on your next job.